Turbojet Engine with 85Kg large Thrust suitable for large drone use

This 85-kilogram-thrust turbojet engine is a suitable power system for small aircraft and large drones, delivering a peak thrust of approximately 90 kgf at sea level under International Standard Atmosphere conditions (Ma = 0). Its structural layout integrates all essential core components: air intake, compressor, combustion chamber, turbine, and exhaust nozzle.

The engine operates on the fundamental turbojet principle. Ambient air is drawn in through the inlet and compressed by the compressor before entering the combustion chamber, where it is mixed with fuel and ignited to produce high-temperature, high-pressure gas. This hot gas drives the turbine — transmitting torque through the shaft to keep the compressor running continuously — and then expands and accelerates through the exhaust nozzle, ejecting rearward to generate forward thrust.

The engine's Electronic Control Unit (ECU) manages all operational phases — startup, acceleration, deceleration, steady-state regulation, and shutdown — in direct response to incoming control signals. Under varied real-world conditions such as different flight altitudes, airspeeds, and ambient climates, the ECU stabilizes the engine at a designated rotational speed during steady operation by dynamically adjusting the fuel pump delivery rate, ensuring consistent and reliable performance throughout the flight envelope.

Note 1: The above performance data are measured under H = 0 km, Ma = 0, atmospheric temperature 288.15 K (15 ℃), and atmospheric pressure 101325 Pa, with a measurement accuracy of ±2%.

Note 2: The engine weight is the total weight of the engine body, controller ECU circuit board, oil pump, and solenoid valve components, excluding the clamp weight.